Mathematics
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OpenStudy (anonymous):
Given: x2 - y2 - 4x - 6y - 6 = 0. Write the standard form of the hyperbola.
1) Find the center
2) Find the vertices
3) Find the foci
4) Find the slope of the asymptotes
5) Determine whether the transverse access is vertical or horizontal.
13 years ago
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OpenStudy (anonymous):
\[(x ^{2}-4x)-(y ^{2}+6y)=6\]
\[(x ^{2}-4x+4-4)-(y ^{2}+6y+9-9)=6\]
\[(x-2)^{2}-(y+3)^{2}-4+9=6\]
\[(x-2)^{2}-(y+3)^{2}=1\]
13 years ago
OpenStudy (anonymous):
great so the center is (2, -3)?
13 years ago
OpenStudy (anonymous):
yes
13 years ago
OpenStudy (anonymous):
could you please explain how to find the other stuff? im lost
13 years ago
OpenStudy (anonymous):
ok
13 years ago
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OpenStudy (anonymous):
??
13 years ago
OpenStudy (anonymous):
you can convert it to standard form by putting::
x=X+2 and y=Y-3
you get:
\[X ^{2}-Y ^{2}=1\]
13 years ago
OpenStudy (anonymous):
how do you find the vertices?
13 years ago
OpenStudy (anonymous):
the coordinates of vertices wrt to new axes are (\[(X=\pm a,0)ie(X=\pm 1,0)\]
13 years ago
OpenStudy (anonymous):
sorry
13 years ago
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OpenStudy (anonymous):
its ok i understand
13 years ago
OpenStudy (anonymous):
\[(X=\pm a,Y=\pm 0)\]
\[x-2=\pm 1,y+3=0\]
so the vertices are (3,-3) and (1,-3)
13 years ago
OpenStudy (anonymous):
foci are \[(X=\pm ae,Y=0) \]
where X=x-2 and Y=y+3
13 years ago
OpenStudy (anonymous):
e stands for eccentricity
13 years ago
OpenStudy (anonymous):
\[e=\sqrt{1+(b ^{2}/a ^{2})}\]
13 years ago
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OpenStudy (anonymous):
got till here????
13 years ago
OpenStudy (anonymous):
yes
13 years ago
OpenStudy (anonymous):
asymptotes are::
\[Y=\pm (b/a)X\] where X=x-2 and Y=y+3
13 years ago
OpenStudy (anonymous):
ok
13 years ago
OpenStudy (anonymous):
slope:
-(coefficient of x)/(coefficient of y)
13 years ago
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OpenStudy (anonymous):
thanks!
13 years ago
OpenStudy (anonymous):
equation of transverse axis is y=0
13 years ago
OpenStudy (anonymous):
@kenneyfamily
13 years ago